You just say "I'm sorry, forgive me, thank you, I love you" whenever you remember about whatever comes up!
That is all you have to do.
Don't worry about the outcome.
You don't even have to say that much, but it's probably a good start!
If you feel inspired to do something else, do it! For example, I find actual physical cleaning is a good way of cleaning!
Here's a post I made on page 2 of this thread on the basics: Zero Limits